Results 51 to 60 of about 764,924 (322)

Hidden human variables in quantum mechanics? [PDF]

arXiv, 2020
The problem of the observer in quantum mechanics is getting new human content. The paradox of Wigner's friend and its extended versions have observers who not only observe quantum phenomena, but communicate, have memories and even super-observer powers. Observers are represented by particle paths and state memories and advanced AI has been suggested to
arxiv  

Functional variation among LPMOs revealed by the inhibitory effects of cyanide and buffer ions

FEBS Letters, EarlyView.
This study addresses the inhibition of lytic polysaccharide monooxygenases (LPMOs) by cyanide and explains how and why the magnitude of observed inhibitory effects depends on the way LPMO reactions are setup and on the type of LPMO. Enzymes known as lytic polysaccharide monooxygenases (LPMOs) are mono‐copper polysaccharide‐degrading peroxygenases that ...
Ole Golten, Lorenz Schwaiger, Zarah Forsberg, Kelsi R. Hall, Anton A. Stepnov, Tom Z. Emrich‐Mills, Iván Ayuso‐Fernández, Morten Sørlie, Roland Ludwig, Åsmund Kjendseth Røhr, Vincent G. H. Eijsink   +10 more
wiley   +1 more source

Observable signatures of dark photons from supernovae

Journal of High Energy Physics, 2019
A dark photon is a well-motivated new particle which, as a component of an associated dark sector, could explain dark matter. One strong limit on dark photons arises from excessive cooling of supernovae.
William DeRocco, Peter W. Graham, Daniel Kasen, Gustavo Marques-Tavares, Surjeet Rajendran   +4 more
doaj   +1 more source

Cubic Observers for a Class of Nonlinear Systems with Input and output delays [PDF]

arXiv, 2019
This paper utilizes the recently proposed cubic observer to estimate the state of a class of nonlinear systems. The cubic observer is proposed as an alternative to linear observers for improved convergence rate and robustness. It is shown that the proposed cubic observer can enhance the estimation compared to linear observers used for the same process.
arxiv  

Ablation of LRP6 in alpha‐smooth muscle actin‐expressing cells abrogates lung inflammation and fibrosis upon bleomycin‐induced lung injury

FEBS Letters, EarlyView.
Low‐density lipoprotein receptor‐related protein 6 (LRP6) is a key receptor for the Wnt antagonist Dickkopf1 (DKK1). DKK1 protein expression is induced in a bleomycin (BLM)‐induced lung injury model. We show that DKK1 induces proinflammatory and profibrotic genes in lung fibroblasts.
Eun‐Ah Sung, Mikhail G. Dozmorov, SuJeong Song, Theingi Aung, Min Hee Park, Patricia J. Sime, Wook‐Jin Chae   +6 more
wiley   +1 more source

Empirical Observability Gramian for Stochastic Observability of Nonlinear Systems [PDF]

arXiv, 2020
We extend observability metrics based on the empirical observability Gramian from deterministic nonlinear systems to nonlinear stochastic systems in order to capture the impact of process noise on observability. We demonstrate that the empirical observability Gramian can be used to provide an equivalent condition for a definition of stochastic ...
arxiv  

Chaos Synchronization using Nonlinear Observers with applications to Cryptography [PDF]

arXiv, 2021
The goal of this survey paper is to provide an introduction to chaos synchronization using nonlinear observers and its applications in cryptography. I start with an overview of cryptography. Then, I recall the basics of chaos theory and how to use chaotic systems for cryptography, with an introduction to the problem of chaos synchronization.
arxiv  

Characteristics of the Kelch domain containing (KLHDC) subfamily and relationships with diseases

FEBS Letters, EarlyView.
The Kelch protein superfamily includes 63 members, with the KLHDC subfamily having 10 proteins. While their functions are not fully understood, recent advances in KLHDC2's structure and role in protein degradation have highlighted its potential for drug development, especially in PROTAC therapies.
Courtney Pilcher, Paula Armina V. Buco, Jia Q. Truong, Paul A. Ramsland, Monique F. Smeets, Carl R. Walkley, Jessica K. Holien   +6 more
wiley   +1 more source

Cartan Subalgebra Approach to Efficient Measurements of Quantum Observables

PRX Quantum, 2021
An arbitrary operator corresponding to a physical observable cannot be measured in a single measurement on currently available quantum hardware. To obtain the expectation value of the observable, one needs to partition its operator into measurable ...
Tzu-Ching Yen, Artur F. Izmaylov
doaj   +1 more source

Sum of Observables on MV-Effect Algebras [PDF]

, 2016
Using a one-to-one correspondence between observables and their spectral resolutions, we introduce the sum of any two bounded observables of a $\sigma$-MV-effect algebra. This sum is commutative, associative and with neutral element. Under the Olson order of observables, the set of bounded observables is a partially ordered semigroup, and the set of ...
arxiv   +1 more source